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Finding the Fourth Proportional to 208,096.20, 312,144.30 and 173,104.20

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Solution

The fourth proportional to 208,096.20, 312,144.30 and 173,104.20 is: 259,656.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,096.20 : 312,144.30 = 173,104.20 : x
  2. Step 2: Convert to fraction form
    208,096.20/312,144.30 = 173,104.20/x
  3. Step 3: Cross multiply
    208,096.20x = 312,144.30 × 173,104.20
  4. Step 4: Simplify right side
    208,096.20x = 54,033,489,336.06
  5. Step 5: Solve for x
    x = 54,033,489,336.06/208,096.20
  6. Step 6: Final answer
    x = 259,656.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.